Precious Stones - Study Guide eBook..

Just take a look at what is covered in this eBook:

=> HOW STONES ARE DISTINGUISHED FROM ONE ANOTHER

=> REFRACTION

=> DOUBLE REFRACTION

=> ABSORPTION AND DICHROISM

=> SPECIFIC GRAVITY

=> SPECIFIC GRAVITY DETERMINATIONS

=> LUSTER AND OTHER REFLECTION EFFECTS

=> HARDNESS

=> HARDNESS (Continued)

=> DISPERSION

=> COLOR

=> COLOR (Continued)

=> COLOR (Continued)

=> COLOR (Concluded)

=> HOW TO TELL SCIENTIFIC STONES FROM NATURAL GEMS

=> HOW TO TEST AN "UNKNOWN" GEM

=> SUITABILITY OF STONES FOR VARIOUS TYPES OF JEWELS, AS DETERMINED BY HARDNESS, BRITTLENESS, AND CLEAVABILITY

=> MINERAL SPECIES TO WHICH THE VARIOUS GEMS BELONG AND THE CHEMICAL COMPOSITION THEREOF

=> THE NAMING OF PRECIOUS STONES

=> THE NAMING OF PRECIOUS STONES (Concluded)

=> WHERE PRECIOUS STONES ARE FOUND

=> HOW ROUGH PRECIOUS STONES ARE CUT

=> HOW ROUGH PRECIOUS STONES ARE CUT AND WHAT CONSTITUTES GOOD "MAKE" (Concluded)

=> FORMS GIVEN TO PRECIOUS STONES

=> IMITATIONS OF PRECIOUS STONES

=> ALTERATION OF THE COLOR OF PRECIOUS STONES

=> PEARLS

=> CULTURED PEARLS AND IMITATIONS OF PEARLS

=> THE USE OF BALANCES AND THE UNIT OF WEIGHT IN USE FOR PRECIOUS STONES

=> TARIFF LAWS ON PRECIOUS AND IMITATION STONES